package com.controller;


import com.domain.Book;
import com.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

import static com.controller.Code.*;

@RestController
@RequestMapping("/books")
public class BookController {

    @Autowired
    private BookService bookService;

    @PostMapping
    public Result save(@RequestBody Book book) {
        boolean flag = bookService.save(book);

        return new Result(flag?Code.SAVE_OK:Code.SAVE_ERR,flag);
    }

    @PutMapping
    public Result update(@RequestBody Book book) {

        boolean flag = bookService.update(book);

        return new Result(flag?Code.UPDATE_OK:Code.UPDATE_ERR,flag);
    }


    @DeleteMapping("/{id}")
    public Result delete(@PathVariable Integer id) {
        boolean flag = bookService.delete(id);

        return new Result(flag?Code.DELETE_OK:Code.DELETE_ERR,flag);
    }

    @GetMapping("/{id}")
    public Result getById(@PathVariable Integer id) {
        Book book = bookService.getById(id);
        Integer flag = book != null? Code.GET_OK:Code.GET_ERR;
        String msg = book != null? "":"数据查询失败，请重试";


        return new Result(flag,book,msg);

    }

    @GetMapping
    public Result getAll() {

        //int i=1/0;
        List<Book> bookList = bookService.getAll();
        Integer flag = bookList != null? Code.GET_OK:Code.GET_ERR;
        String msg = bookList != null? "":"数据查询失败，请重试";
        return new Result(flag,bookList,msg);
    }

}
